package ThreadPool;

import java.util.concurrent.atomic.AtomicInteger;

/**
 * AtomicInteger 实现多线程自增同一个变量
 * 原子类测试
 */
public class demo5 {

//    private static int count = 0;

    private static AtomicInteger count = new AtomicInteger();
    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                // count++
                count.getAndIncrement();
//                // ++count
//                count.incrementAndGet();
//                // count--
//                count.getAndDecrement();
//                // --count
//                count.decrementAndGet();
//                // count += n
//                count.getAndAdd();
            }
        });

        Thread t2 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                count.getAndIncrement();
            }
        });

        t1.start();
        t2.start();
        t1.join();
        t2.join();

        System.out.println(count.get());
    }

}
